Means for securing tires to vehicle wheels



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* J. M. MUNDY MEANS FOR SECURING TIRES; TO VEHICLE WHEELS Filed Oct. 7, 1920 2 Sheets-Sheet 1 July 3i, YE923.

J. M. MUNDY MEANS FOR SECURING TIRES TO-VEHICLE WHEELS Filed oct. v, 1920 2 sheets-sheet 2 A Patented July 3l, 1923.

JAMES M. MUNDY, 'or

Mem@

rasant erstes.; I

Baoonitrm NEW Yoan.

MEANS FOR SECUBING TXRES T VEHICLE WHEELS.

Application tiled ctober Toallwhomitma cancer/lt.'

Be it known t at I, JAMES M. MUNDY, a citizen of the United States, and a resident of the borough of Brookl n, county of Kings, e city and State of New ork, have invented certain new` and useful 11n rovements in Means for Securing Tires to chicle Wheels, of which the following is a specification.

My improvements relate to wheels of the X0 type in which demountable tires are used, especially elastic resilient tires, -pneumatic or otherwise, as in the case of automobiles etc. In my concurrent application Serial No. 361,905, liled Feb. 27, 1920, I show and describe the essentialjfeaturs of my inven.

tion as applied to wheels of the class designated havin spokes and elloes, and lprovided with emountable rims interposed between the eripheries of the felloes and the elastic resi ienttires, in a manner .well known in the art.

In the present case my'improvementsrelate more .particularly to 'a comparativel vnew form of wheel of recent vogue in whic the demo'untable rim may or may not be used in the mounting of the elastic resilient tire, and in which the spokes and felloe,.so called, of the older form of wheel are practically eliminated,-'such new wheels being k'nown as of the disc t pe, in'which a 'metallicy late replaces t e spokes, and thefelloe 1s superseded by a peripheral flange adapted' to support/the tire, either directly,

or indirectlyv -by means of a demountable rim. In other words, my present invention consists essentially in adapting the principle i om annular 'wedgeable clamping plate to the isc wheels, both for the purpose of detachably mounting an .elastic resilient tire l 4 thereon, and also for detachably securing the disc Wheel to its hub, fully .set orth.

In the accompanying drawings,

Fig. 1,'is an ,elevation of the louter face as hereinafter .45 of a disc wheel to which my wedgeable annular clamping plates arev applied, said clamping rings being shown in detachable positions;

` Fig. 2, is a section takenupon planevo line 2-2, Fig. 1;

Fig. 3 is an elevation like unto Fig. 1, showing my annular clamping" plates in wedged `position on the disc wheel; Fig. 4 is a sectional detail illustrating a 7, 1920. serial No. 415,425.

means of tightening my annular clamping plates by a pry implement.- l

Flg. V5, isa sectional detail illustrating -the contactual engagement between wedge plate andattachment lugs; v

Fig. 6, is a sectional elevation of the flanged annular clamping plate shown in Figs. l, 2 `and 3, broken awa in part to show one of the wedging sur aces;

Fig. f1, is an elevation, broken -awayin part of the disc wheel shown in the preceding figures; Fig. 8 is an elevation of a annular tire clamping plate. Fig. 9 is a detail elevation ofthe annular hub clamping plate.- v

Fig. 10 is an edge view of one ofthe lock plates;

Fig. 11 is a view of the outer lside thereof, the serrations onI the-other side ybeing in-A dicated'by dotted. lines;

Fig. 12 is a sectional detail showing lone of the attachment lugs, etc.; i

Fig. 13, is a sectional detail illustrating the function of the locking'plates.

Fig 14, is a sectional view showing detalils relating to the annular 'club clamping -p ate;

Fig.- 15, is a sectional detail illustrating` the mounting of a detachable .rim on the felloe flange by -means of my wedgeable clamping plate;

unt o-Fig. 5, showing modifications` inthe positioning ofthe wedge lates. The main disc portion Aof the wheel is .formed with, or having r' idly incorpo-- rated therewith, a periphera rim flange d, which 1s the equivalent of thefelloe ofthe Figs. 16 and 1'!l are sectional details like `r older form of wheel, such as illustrated in l my concurrent `a plication Serial .No. 361,905. In fact',

or convenience off; de-u' scription, this main peripheral dis'crim-V-may" be designated as the felloe rim, d, sincethe' disc support of Awhich. it forms an integrall part functions in lieu of the spoke support of the older wooden felloe. This felloe rim d, is-formed with an out-turned 4peripheral edge flange d', affording lateral support onthat side of the felloevflange d, either for a demountable rimon whichV an elastic resil ient tire is positioned in a mannerY well known in the art, or directly for the-mount- .'ing and support of such an elastic resilient the disc wheel, said wedgeable ,clamping plate C, being formed with a peripheral edge tlange c, which acts in conjunction with that (d) on the elloe flange ci, to support the tire mount, either directly or indirectly, laterally on said felloe flange cl, d.

My wedgeable clamping plate C, is preierably annular in shape, and fits against the front side of the spoke` disc structure D, its peripheral diameter (aside from' its edge lange c) being the same as that ot the felloe flange (l, ot said spoke disc structure D', as Shown more particularly in Figs. 2, 12, and 15. The clamping plate C, is supported on the spoke. disc face by a plurality of attachment lugs a, a, protuberant from the outer side of said disc, D, and each formed with a shoulderv a', adapted to overlap the outer -tace of said wedgeable clamping plate C, which latter is formed with elongated concentric slots c3, c3, for the accommodation of said attachment. lugs a, a.. lin the drawings the wheel is shown with tour ot thesev attachment lugs a, a, although ll do not'limit myself in this respect, since three, five, or any desired pluralnumber may be provided, according to preference or requirements.

ll`he contactual surfaces a2 of the shoulders a', of the attachment lugs a, a, and the coru responding contactual surfaces c4, of the annular wedgeable clampin plate C, may both be correspondingly inc ined with rela tion to each other, as shown in Fig. 5, so as to attainfmutually a close, wedge-like. en-l gagement,-or either one or the other of the interlocking contactual surfaces named (a2, c4) may be inclined to function as wedges, as illustrated in Figs. 16 and`17,-the essential feature in this respect being an inclined wedgeable contactual engagement between the annular clamping plate C' and the attachment lugs a, a, which will insure the pressing ot' said clamping plate C, tightly against'the outer side face of the spoke disc D, when the said wedgeable clamping plate C, is

forcefully turned in the direction of the arrows` Figs. 1 and 3, thereby securing the elastic resilient tire in operative position on the periphery of the wheel, either directly, or indirectly, as heretofore intimated. Thus in Fig., 17, the inclined surface a2, of the attachment lug a, performs the function yof a wedge when the opposed edge c4, of the slot c3, is driven against it, while conversely, in F ig. 16, the inclined surface o4, of the clamping plate C, acts as a wedge when driven against the end a2, of the shoulder a', of the attachment lug a,-the.rcsult be- `wheel.

llo facilitate the wedging operation above set forth the wedgeable annular ciampi-nt.Y

plate U, is termed on its outer :tace with 'tno or, more thrust shoulders cx, cx, which may be utilized in partially and forcefully rotating the said wedgeable annular clamping ring C, in either direction, as in the direction ot the arrows Figs. l and 3, for tightening purposes, or in the opposite direction as indicated by the arrows Fig. 15, for the purpose of loosening said wedgeable clamping plate C, from the tace of the spoke disc D, as may be required.

' Other and auxiliary means may also be provided for tightening or loosening the annular wedgeable clamping plateC, as relatedto the wheel disc D. 'll`hus,said annular wedgeable clamping plate (C, may be formed with a pry hole c5, for use in conjunction with a. fulcrum hole f, in the face of thesaid Wheel disc D, the pointed end of a suitable lever or implement Z, being insertn ed through theclamping plate pry hole c5,

and into the fulcrum hole f, in the spoke disc' `D, as illustrated in Fig. 4:, and the lever Z,

Vbeing used to pry the wedgeable clamping plate C, home against the attachment lugs a, i

a, or to loosen it therefrom, as required.

To efl'ectually and positively lock the annular clamping plate C, in wedged position on the spoke disc D,4 l form said Wedgeable clamping plate C, with a series of transverse corrugations, c", c6, for engagement with a' lock plate p, the inner side of which is formedwith transverse corrugat-ions p', corresponding with the said corrugations c", c6, on the wedgeable clamping plate and .adapted to co-act therewith in securing the said annular clamping plate C, against slip or retractile movement when wedged to the spoke disc D, as above set torth,-the lock plate .10, being secured rigidly in position by means of a screw bolt b, attached to and protuber- ,ant from the tace of said disc D, and passing through said wedgeable clamping plate C,

land engaging with abinding nut n, as

shown more particularly in Figs. 3 and 1 3, of the drawi gs. A

rllhe annular wedgeable clamping plate C, is preferably made continuous throughout its circumference as shown in thel drawings, although if desired for any reason itniay be splitas shown and described in my foresaid concurrent application Serial No. 361,905, in which case the corrugat'ions c6, c, are formed on either side of the splitf-the lock plate p, when in position, overlapping tra the opposed ends of the wedgeablevclamping plate C, so as to secure each end and half of said wedgeable clamping plate C, against retractile movement when locked in position upon the spoke disc D.

When formed in a single piece my annular clamping plate C, thus constructed' and arranged in conjunction with the attachment lugs la, a., affords many'practical advantages over the prior state of the art. Thus, by the removal of a single bolt b, and the forceful tapping of one or more of the thrust shoulders 0X, the clamping plate C, may be quickly and conveniently loosened up for removal to admit of the substitution of a new tire, and as quickly replaced and firmly secured inl pos1tion,the single bolt b, being the only removable and replaceable securing means other than the annular clamping plate itself, and the latter, by its wedge-plane contactual engagement with the plurality of attachment lugs a., a, enables me to dispense with the plurality of bolts heretofore requisite to secure the tire ,to the rim of the wheel. Hence the time and labor involved in replacement of tires is materially lessened by my invention as compared with the methods and means heretofore in vogue, where a plurality of screw bolts has been deemed essential for the purpose.

Thus far I have described my wedgeable clamping plate as positioned circumferentially upon the spoke disc D, and acting in in an emergency where time is an important factor, as in the case of lire apparatus, ambulances, etc., where the practically instantaneou's replacement of a complete vwheel would be a desideratumf Thus, in the arrangement shown'in Figs. 1, 2, 3, 8 and 9, I secure attachment lugs a,

to the brake drum or other flanged portion' L, of the'hub L, and form the spoke disc D, with a series of concentric slots d2, d2, (Fig.

7) through which said attachment lugs a, a,

protrude, for engagement with the wedgeable portions of the auxiliary wedgeable clamping plate C', which in every respect except diameter is a counterpart of the larger wedgeable clamping plate C', which is positioned circumferentlally on said disc D,-the

mode of detachable -ap lication of the said inner auxiliary wedgeab eclamping plate C',

being essentially the same as that described in connection with the said circumferential clamping plate C. For this reason the said central auxiliary wedgeable clamping plate C', is'provided with its own drive shoulders 0X1', wedge Surfaces 041,-pry hole 0.51, corrugated portion c, and lock plate p,- the latter being secured in position by means of a bolt and nut substantially as illustrated in F ig. 13.

From .the foregoing it will be seen that the essential feature of my present invention is the use of clamping means such as'vherein designated whereby a tire may be demountably -secured to a disc wheel, and the disc vwheel demountably secured to its hub section,said wed'geablcclamping means comprising a plurality of elongated concentric slots @,in conjunction with attachment lugs a, protuberant from the supporting part,- the contactual engagement between said attachment-lugs a, and the edges of the said concentric slots 0, being wedgeable, as and for the purpose set forth. A supplementary feature is the locking vmeans provided for positively but detachably insuring the wedged co-relation of said parts by the means of la single screw bolt, whereby immediate substitution may. be effected in case of emergency,-obviating delay-that might otherwise result disastrously.

What I claim as my invention and desire to secure by Letters Patent is, f

A wheel of the character designated, comprising a spoke disc formed with a flanged peripheral felloe rim and a fulcrum hole in its face, a flanged annular clamping plate fitted to the face of the spoke disc and formed with a pry holepositioned with relation to the aforesaid fulcrum hole in the spoke disc and also formed with a plurality of elongated concentric slots, shouldered attachment lugs protuberant from the face of said spoke disc and fitting in said elongated concentric slots in the annular clamping plate, the contactual surface engagement between said shouldered attachment lugs and the outer face of said annular clamping plate being we'dgeable, and means for locking said annular clamping plate and shouldered attachment lugs on the spoke disc in wedged relationship, for the purpose de-I GEO. WM. MATT,

DOROTHY MIA'i'r. 

